Can you hear the radio normally, say if you go to www.kiss100.com and do the listen live ? Does it work ? With regards to the screen text, you could try resizing your general screen area, right click the desktop, click properties, click on settings, and change the screen area size, failing that, open internet explorer, click view, then text size and change it.

And with regards to the sopund quality, is that regardless of what cd it is ? Right click my computer, left click properties, if xp click on hardware, if not ignore, click on device manager, click the little plus next to cd-rom / dvd drive. double click on the drive you will have there, click on the properties tab, and there will be an option regarding digital playback, tick / untick it, restart the pc and test it.